Inside car door



H. H. MOTT msnm am DooR Filed June' 221 1920 A TTORNE Y.

Patented Mar. ll, 1924.

tritati ARVEY H. Mor'r, 0E ASTORIA, OREGON.

INSIDE can noon.

Application filed June a4, ieee. serial No. 391,374.

To @ZZ whom t may conce/m.'

Be it known that I, HARVEY H. Mo'r'r, a citizen p of the United States, residing at Astoria, in the county of Clatsop and State of Oregon, haveinvented certain new and useful Improvements in Inside Car Doors, of which the following is a specification.

This invention relates to new and useful.

improvements in freight car doors and more particularly to auxiliary car doors .used in connection with the -ordinary car door, the primary object of the invention being to provide such auxiliary doors as will move outwardly of the car door-ways under force of the outwardly moving cargo when the usual sliding car doors are opened and the latch means released.

Another important object of the invention is to provide means for releasably retaining the auxiliary doors in closed position and also means. whereby these doors may be moved and held in close proximity to the roof .of the car when their use is not desired.

Another object ofthe invention is to provide auxiliary doors of the above named character which includes 'a plurality of sections hingedly connected in a manner that the sections will move outwardly of the car door-ways under force of the outwardly moving cargo, and latch means for releasably retaining the sections in a closed position.

Other objects and advantages of the invention will become apparent during the course of the following description.

1n the accompanying drawings forming a part of the application and-wherein like numerals are employed to designate like parts throughout the several views,

Figure 1 is a transverse vertical section through a freight car illustrating the invention in use.

Figure 2 'is a fragmentary side elevation of the 'freightl car with the invention applied thereto, and

Figure 3 is a top plan of my improved auxiliary door, the section thereof being illustrated in an open or broken position.

Referring to the drawings wherein for the purpose of illustration Vis, vshown the preferred embodiment of the invention, the numeral 4: designates any type of freight box car7 each side thereof being provided with the usual door way .5 and longitudinally sliding doors 6 for closing the same.

As considerable damage to the sliding doors has been incurred by cargoes being discharged through the door-ways when the doors are being opened, l have devised auxiliary doors designated in their entirety by the numeral 7 which are adapted to .be arranged in the door ways inside of the car. Outward movement f the auxiliary doorsis prevented when they are closed, by the., vertical ends of the doors extending beyond the sides of the door-ways. However, in order that the auxiliary doors may move outwardly of the door-ways during 'the discharge of the cargo l have made each door to consist of a pair of sections 8 and 97 the former being not quite as wide as the latter. These two sections are hingedly connected together at their vertical contiguous edges by hinges 10 in such a manner that the contiguous ends of the sections vmay move outwardly through the doorway at the proper time.

A locking element consisting of a U- shaped bar is secured by its free ends 12 to the outside of the smaller section 8 in a manner that the two arms of the locking element are disposed horizontally of the door and the bridging portion 13 of the bar is disposed against the exterior of the section 9 adjacent its free end or edge. A latch 14 is provided for retaining the section 9 in engagement with the locking bar, and consists of an arm 15 having one end universally secured to the exterior of the section 9 as at 16. By this connection, it will be apparent that the latch arm may swing outwardly of the section 9 or around in a circle with the universal connection as a center so that it may be properly engaged with the well known form of keeper 17 which is secured to the exterior of the section 9.

As shown in Figure 2, the auxiliary door is in a closed position to prevent the discharge of the cargo through the car doorway. After the usual sliding door 6 has been opened the latch arm 15 is disengaged from its keeper 17 and swung to a position lout of the path of movement of the locking bar. Due to the fact that the cargo, assuming that it is grain or other like material is always exerting an outward force on the auxiliary door after the latch arm has been swung as above set forth. the force of the cargo will break the hinge joint between the two sections and cause them to move outwardly through the car doorway so that the cargo may have ready movement therethrough.

A pair of chains 18 are each fastened at one end to the top of the auxiliary door, one end being connected-to one section while the other chain is connected to the other section. rllhese two chains are passed over pulleys 19 suspended from the roof of the car, or in proximity thereto, and suitable engaging hooks 2O are fastened to the sides of the car whereby the chains may be engaged therewith so as to retain them in any desired adjusted position. The chains 18 are designed for elevating the auxiliary doors, and in order that the same may be swuno` inwardly and upwardly of the car when tieir use is not desired, tackles 21 are provided. These tackles consist of a pulley 22 secured to the roof of the car and a chain engaged therewith and carrying a hook 2t which is adapted to be engaged by a loop 25 secured to the exterior of the section 9 of the auxiliary door adjacent its lower edge. Referring to Fig. 1 of the drawing, it will be noted that when the auxiliary door on the right of the car is to be swung to be arranged closer to the roof of the car, the right hand tackle 21 is not employed for swinging the left hand auxiliary door. instead, a tackle 26 is carried by the exterior of the auxiliary door, or more specifically to that of the section 9 adjacent the top thereof as clearly shown in Fig. 2. A similar tackle 26 is carried by the upper door on the opposite side of the car and each tackle consists of a pulley 27, a chain 28 engaging the pulley, and a hook 29 carried by one end of the chain.

A pair of hooks 30 are secured to the roof of the car and extend in opposite directions as clearly shown in Fig. 1 so that either one or the other of the hooks may be engaged with the relative uppermost door, each door being provided on its inner side adjacent the bottom with a loop 31 which is adapted to be engaged with its respective hook 30. However, as only one hook 30 may be engaged by one door, l provide each door or section 9 with an upwardly projecting hook 32 which may be engaged with the loop 31 of the relative lowerinost door as seen in Figure 1. llhen the left hand door is v swung` to an open position to be arranged nearest the roof of the car, the loop 31 is engaged with the right hand hook 8O of the car roof. Similarly, the rposition of the other elements are correspondingly reversed from that which is shown in Figure l.

in order to dispose the door in an open position and in proximity to the roof of the car solely by the manipulation of the blocks and tackles, chain 18 is pulled downwardly to elevate the door after which chain 21 is claims.

Having thus fully described my invention Y what l claim as new and desire to secure by Letters Patent is 1. The combination with a freight car having a door-way in each side thereof, of suspension hooks carried by the car roof, a door adapted to be swung inwardly for each door-way, each door having a loop on the inner side thereof and a hook whereby the hook of the car may be engaged with the loop of the door and the hook on the other door engaged with the loop of the iirst mentioned door.

2. The combination with a freight car having a door-way in each side thereof, of a door adapted to be swung inwardly for each door-way, a pair of tackles carried by the car, a tackle for elevating each door, a tackle carried by the exterior ofeach door, and means for releasably retaining said doors in a raised position.

3. In a car having a door way, a door suspended in the door way by a block and tackle, a block and tackle carried by the car roof beyond the sweep of the door, a hook having a horizontal bill rigidly fixed to the car roof between the two blocks and tackles for retaining the door in a substantially horizontal position, and the tackles being operable to engage the door with the horizontal bill of the hook.

e. The combination with a car having a door way in each side thereof, a door for each doorway and being capable of being moved to a horizontal position adjacent the roof of the car, means for retaining one of said doors in its elevated horizontal position, and a block and tackle carried by the exterior face of said door whereby the tackle. can be engaged with the other door for moving the saine to an elevated horizontal position to be arranged in proximity to the first mentioned door.

ln testimony whereof l atiix my signature in presence of two witnesses.

c HARVEY lil. MOTT. Witnesses:

W. W. Hoon,

JANET Gr. NGRAM. 

